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Diff for /loncom/homework/lonhomework.pm between versions 1.144 and 1.145

version 1.144, 2003/09/17 18:16:39 version 1.145, 2003/09/18 19:59:15
Line 57  use Apache::loncommon(); Line 57  use Apache::loncommon();
 #use Time::HiRes qw( gettimeofday tv_interval );  #use Time::HiRes qw( gettimeofday tv_interval );
   
 BEGIN {  BEGIN {
   &Apache::lonxml::register_insert();      &Apache::lonxml::register_insert();
 }  }
   
 sub get_target {  sub get_target {
   if (($ENV{'request.state'} eq "published") ||      if (($ENV{'request.state'} eq "published") ||
       ($ENV{'request.state'} eq "uploaded")) {   ($ENV{'request.state'} eq "uploaded")) {
     if ( defined($ENV{'form.grade_target'}  )    if ( defined($ENV{'form.grade_target'}  ) 
  && ($ENV{'form.grade_target'} eq 'tex')) {       && ($ENV{'form.grade_target'} eq 'tex')) {
       return ($ENV{'form.grade_target'});      return ($ENV{'form.grade_target'});
     } elsif ( defined($ENV{'form.grade_target'}  )    } elsif ( defined($ENV{'form.grade_target'}  ) 
  && ($Apache::lonhomework::viewgrades eq 'F' )) {    && ($Apache::lonhomework::viewgrades eq 'F' )) {
       return ($ENV{'form.grade_target'});      return ($ENV{'form.grade_target'});
     }   }
    
     if ( defined($ENV{'form.submitted'}) &&  
  ( !defined($ENV{'form.resetdata'})) &&  
  ( !defined($ENV{'form.newrandomization'}))) {  
       return ('grade', 'web');  
     } else {  
       return ('web');  
     }  
   } elsif ($ENV{'request.state'} eq "construct") {  
     if ( defined($ENV{'form.grade_target'}) ) {  
       return ($ENV{'form.grade_target'});  
     }  
     if ( defined($ENV{'form.preview'})) {  
       if ( defined($ENV{'form.submitted'})) {  
  return ('grade', 'web');  
       } else {  
  return ('web');  
       }  
     } else {  
       if ( $ENV{'form.problemmode'} eq 'View' ||  
    $ENV{'form.problemmode'} eq 'Discard Edits and View') {  
  if ( defined($ENV{'form.submitted'}) &&   if ( defined($ENV{'form.submitted'}) &&
      (!defined($ENV{'form.resetdata'})) &&       ( !defined($ENV{'form.resetdata'})) &&
      (!defined($ENV{'form.newrandomization'}))) {       ( !defined($ENV{'form.newrandomization'}))) {
   return ('grade', 'web','answer');      return ('grade', 'web');
  } else {   } else {
   return ('web','answer');      return ('web');
  }   }
       } elsif ( $ENV{'form.problemmode'} eq 'Edit' ) {      } elsif ($ENV{'request.state'} eq "construct") {
  if ( $ENV{'form.submitted'} eq 'edit' ) {   if ( defined($ENV{'form.grade_target'}) ) {
   if ( $ENV{'form.submit'} eq 'Submit Changes and View' ) {      return ($ENV{'form.grade_target'});
     return ('modified','web','answer');   }
   } else {   if ( defined($ENV{'form.preview'})) {
     return ('modified','edit');      if ( defined($ENV{'form.submitted'})) {
   }   return ('grade', 'web');
  } else {      } else {
   return ('edit');   return ('web');
  }      }
       } else {   } else {
  return ('web');      if ( $ENV{'form.problemmode'} eq 'View' ||
       }   $ENV{'form.problemmode'} eq 'Discard Edits and View') {
    if ( defined($ENV{'form.submitted'}) &&
        (!defined($ENV{'form.resetdata'})) &&
        (!defined($ENV{'form.newrandomization'}))) {
       return ('grade', 'web','answer');
    } else {
       return ('web','answer');
    }
       } elsif ( $ENV{'form.problemmode'} eq 'Edit' ) {
    if ( $ENV{'form.submitted'} eq 'edit' ) {
       if ( $ENV{'form.submit'} eq 'Submit Changes and View' ) {
    return ('modified','web','answer');
       } else {
    return ('modified','edit');
       }
    } else {
       return ('edit');
    }
       } else {
    return ('web');
       }
    }
     }      }
   }      return ();
   return ();  
 }  }
   
 sub setup_vars {  sub setup_vars {
   my ($target) = @_;      my ($target) = @_;
   return ';'      return ';'
 #  return ';$external::target='.$target.';';  #  return ';$external::target='.$target.';';
 }  }
   
 sub send_header {  sub send_header {
   my ($request)= @_;      my ($request)= @_;
   $request->print(&Apache::lontexconvert::header());      $request->print(&Apache::lontexconvert::header());
 #  $request->print('<form name='.$ENV{'form.request.prefix'}.'lonhomework method="POST" action="'.$request->uri.'">');  #  $request->print('<form name='.$ENV{'form.request.prefix'}.'lonhomework method="POST" action="'.$request->uri.'">');
 }  }
   
 sub createmenu {  sub createmenu {
   my ($which,$request)=@_;      my ($which,$request)=@_;
   if ($which eq 'grade') {      if ($which eq 'grade') {
     $request->print('<script language="JavaScript">    $request->print('<script language="JavaScript"> 
           hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote",            hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote",
                  "height=350,width=150,menubar=no");                   "height=350,width=150,menubar=no");
           </script>');            </script>');
   }      }
 }  }
   
 sub send_footer {  sub send_footer {
   my ($request)= @_;      my ($request)= @_;
 #  $request->print('</form>');  #  $request->print('</form>');
   $request->print(&Apache::lontexconvert::footer());      $request->print(&Apache::lontexconvert::footer());
 }  }
   
 $Apache::lonxml::browse='';  $Apache::lonxml::browse='';
Line 149  $Apache::lonxml::browse=''; Line 149  $Apache::lonxml::browse='';
 # JB, 9/24/2002: Any changes in this function may require a change  # JB, 9/24/2002: Any changes in this function may require a change
 # in lonnavmaps::resource::getDateStatus.  # in lonnavmaps::resource::getDateStatus.
 sub check_access {  sub check_access {
   my ($id) = @_;      my ($id) = @_;
   my $date ='';      my $date ='';
   my $status;      my $status;
   my $datemsg = '';      my $datemsg = '';
   my $lastdate = '';      my $lastdate = '';
   my $temp;      my $temp;
   my $type;      my $type;
   my $passed;      my $passed;
   
   if ($ENV{'request.state'} eq "construct") {      if ($ENV{'request.state'} eq "construct") {
     &Apache::lonxml::debug("in construction ignoring dates");   &Apache::lonxml::debug("in construction ignoring dates");
     $status='CAN_ANSWER';   $status='CAN_ANSWER';
     $datemsg='is in under construction';   $datemsg='is in under construction';
     return ($status,$datemsg);   return ($status,$datemsg);
   }      }
   
   &Apache::lonxml::debug("checking for part :$id:");      &Apache::lonxml::debug("checking for part :$id:");
   &Apache::lonxml::debug("time:".time);      &Apache::lonxml::debug("time:".time);
   foreach $temp ("opendate","duedate","answerdate") {      foreach $temp ("opendate","duedate","answerdate") {
     $lastdate = $date;   $lastdate = $date;
     $date = &Apache::lonnet::EXT("resource.$id.$temp");   $date = &Apache::lonnet::EXT("resource.$id.$temp");
     my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");   my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type");
     if ($thistype =~ /^(con_lost|no_such_host)/ ||   if ($thistype =~ /^(con_lost|no_such_host)/ ||
  $date     =~ /^(con_lost|no_such_host)/) {      $date     =~ /^(con_lost|no_such_host)/) {
  $status='UNAVAILABLE';      $status='UNAVAILABLE';
  $date="may open later.";      $date="may open later.";
  return($status,$date);      return($status,$date);
     }   }
     if ($thistype eq 'date_interval') {   if ($thistype eq 'date_interval') {
  if ($temp eq 'opendate') {      if ($temp eq 'opendate') {
            $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;   $date=&Apache::lonnet::EXT("resource.$id.duedate")-$date;
         }      }
         if ($temp eq 'answerdate') {      if ($temp eq 'answerdate') {
            $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;   $date=&Apache::lonnet::EXT("resource.$id.duedate")+$date;
         }      }
     }   }
     &Apache::lonxml::debug("found :$date: for :$temp:");   &Apache::lonxml::debug("found :$date: for :$temp:");
     if ($date eq '') {   if ($date eq '') {
       $date = "an unknown date"; $passed = 0;      $date = "an unknown date"; $passed = 0;
     } elsif ($date eq 'con_lost') {   } elsif ($date eq 'con_lost') {
       $date = "an indeterminate date"; $passed = 0;      $date = "an indeterminate date"; $passed = 0;
     } else {   } else {
       if (time < $date) { $passed = 0; } else { $passed = 1; }      if (time < $date) { $passed = 0; } else { $passed = 1; }
       $date = localtime $date;      $date = localtime $date;
    }
    if (!$passed) { $type=$temp; last; }
     }      }
     if (!$passed) { $type=$temp; last; }      &Apache::lonxml::debug("have :$type:$passed:");
   }      if ($passed) {
   &Apache::lonxml::debug("have :$type:$passed:");   $status='SHOW_ANSWER';
   if ($passed) {   $datemsg=$date;
     $status='SHOW_ANSWER';      } elsif ($type eq 'opendate') {
     $datemsg=$date;   $status='CLOSED';
   } elsif ($type eq 'opendate') {   $datemsg = "will open on $date";
     $status='CLOSED';      } elsif ($type eq 'duedate') {
     $datemsg = "will open on $date";   $status='CAN_ANSWER';
   } elsif ($type eq 'duedate') {   $datemsg = "is due at $date";
     $status='CAN_ANSWER';      } elsif ($type eq 'answerdate') {
     $datemsg = "is due at $date";   $status='CLOSED';
   } elsif ($type eq 'answerdate') {   $datemsg = "was due on $lastdate, and answers will be available on $date";
     $status='CLOSED';      }
     $datemsg = "was due on $lastdate, and answers will be available on $date";      if ($status eq 'CAN_ANSWER') {
   }   #check #tries, and if correct.
   if ($status eq 'CAN_ANSWER') {   my $tries = $Apache::lonhomework::history{"resource.$id.tries"};
     #check #tries, and if correct.   my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");
     my $tries = $Apache::lonhomework::history{"resource.$id.tries"};   if ( $tries eq '' ) { $tries = '0'; }
     my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries");   if ( $maxtries eq '' ) { $maxtries = '2'; } 
     if ( $tries eq '' ) { $tries = '0'; }   if ($tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }
     if ( $maxtries eq '' ) { $maxtries = '2'; }    # if (correct and show prob status) or excused then CANNOT_ANSWER
     if ($tries >= $maxtries) { $status = 'CANNOT_ANSWER'; }   if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/
     # if (correct and show prob status) or excused then CANNOT_ANSWER      &&
     if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/      lc($Apache::lonhomework::problemstatus) ne 'no')
  &&     ||
  lc($Apache::lonhomework::problemstatus) ne 'no')     $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {
        ||      $status = 'CANNOT_ANSWER';
        $Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) {   }
  $status = 'CANNOT_ANSWER';  
     }      }
   }  
   
   #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&    #if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') &&
   #    (!$Apache::lonhomework::history{"resource.0.outtoken"})) {    #    (!$Apache::lonhomework::history{"resource.0.outtoken"})) {
Line 233  sub check_access { Line 233  sub check_access {
   #}    #}
   
   
   &Apache::lonxml::debug("sending back :$status:$datemsg:");      &Apache::lonxml::debug("sending back :$status:$datemsg:");
   if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {      if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) {
     &Apache::lonxml::debug("should be allowed to browse a resource when closed");   &Apache::lonxml::debug("should be allowed to browse a resource when closed");
     $status='CAN_ANSWER';   $status='CAN_ANSWER';
     $datemsg='is closed but you are allowed to view it';   $datemsg='is closed but you are allowed to view it';
   }      }
   
   return ($status,$datemsg);      return ($status,$datemsg);
 }  }
   
 sub showhash {  sub showhash {
   my (%hash) = @_;      my (%hash) = @_;
   &showhashsubset(\%hash,'.');      &showhashsubset(\%hash,'.');
   return '';      return '';
 }  }
   
 sub showarray {  sub showarray {
Line 267  sub showarray { Line 267  sub showarray {
 }  }
   
 sub showhashsubset {  sub showhashsubset {
   my ($hash,$keyre) = @_;      my ($hash,$keyre) = @_;
   my $resultkey;      my $resultkey;
   foreach $resultkey (sort keys %$hash) {      foreach $resultkey (sort keys %$hash) {
     if ($resultkey =~ /$keyre/) {   if ($resultkey =~ /$keyre/) {
       if (ref($$hash{$resultkey})) {      if (ref($$hash{$resultkey})) {
  if ($$hash{$resultkey} =~ /ARRAY/ ) {   if ($$hash{$resultkey} =~ /ARRAY/ ) {
     &Apache::lonxml::debug("$resultkey ---- ".      &Apache::lonxml::debug("$resultkey ---- ".
    &showarray($$hash{$resultkey}));     &showarray($$hash{$resultkey}));
  } elsif ($$hash{$resultkey} =~ /HASH/ ) {   } elsif ($$hash{$resultkey} =~ /HASH/ ) {
     &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");      &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
     &showhashsubset($$hash{$resultkey},'.');      &showhashsubset($$hash{$resultkey},'.');
  } else {   } else {
     &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");      &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
  }   }
       } else {      } else {
  &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");   &Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}");
       }      }
     }   }
   }      }
   &Apache::lonxml::debug("\n<br />restored values^</br>\n");      &Apache::lonxml::debug("\n<br />restored values^</br>\n");
   return '';      return '';
 }  }
   
 sub setuppermissions {  sub setuppermissions {
   $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'});      $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'});
   my $viewgrades = &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});      my $viewgrades = &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});
   if (! $viewgrades &&       if (! $viewgrades && 
       exists($ENV{'request.course.sec'}) &&    exists($ENV{'request.course.sec'}) && 
       $ENV{'request.course.sec'} !~ /^\s*$/) {   $ENV{'request.course.sec'} !~ /^\s*$/) {
       $viewgrades = &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}.   $viewgrades = &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}.
                                                '/'.$ENV{'request.course.sec'});                                                 '/'.$ENV{'request.course.sec'});
   }      }
   $Apache::lonhomework::viewgrades = $viewgrades;      $Apache::lonhomework::viewgrades = $viewgrades;
   return ''      return ''
 }  }
   
 sub setupheader {  sub setupheader {
Line 320  sub setupheader { Line 320  sub setupheader {
 }  }
   
 sub handle_save_or_undo {  sub handle_save_or_undo {
   my ($request,$problem,$result) = @_;      my ($request,$problem,$result) = @_;
   my $file    = &Apache::lonnet::filelocation("",$request->uri);      my $file    = &Apache::lonnet::filelocation("",$request->uri);
   my $filebak =$file.".bak";      my $filebak =$file.".bak";
   my $filetmp =$file.".tmp";      my $filetmp =$file.".tmp";
   my $error=0;  
   
   if ($ENV{'form.Undo'} eq 'undo') {  
     my $error=0;      my $error=0;
     if (!copy($file,$filetmp)) { $error=1; }  
     if ((!$error) && (!copy($filebak,$file))) { $error=1; }      if ($ENV{'form.Undo'} eq 'undo') {
     if ((!$error) && (!move($filetmp,$filebak))) { $error=1; }   my $error=0;
     if (!$error) {   if (!copy($file,$filetmp)) { $error=1; }
       $request->print("<p><b>Undid changes, Switched $filebak and $file</b></p>");   if ((!$error) && (!copy($filebak,$file))) { $error=1; }
     } else {   if ((!$error) && (!move($filetmp,$filebak))) { $error=1; }
       $request->print("<p><font color=\"red\" size=\"+1\"><b>Unable to undo, unable to switch $filebak and $file</b></font></p>");   if (!$error) {
       $error=1;      $request->print("<p><b>Undid changes, Switched $filebak and $file</b></p>");
     }   } else {
   } else {      $request->print("<p><font color=\"red\" size=\"+1\"><b>Unable to undo, unable to switch $filebak and $file</b></font></p>");
     my $fs=Apache::File->new(">$filebak");      $error=1;
     if (defined($fs)) {   }
       print $fs $$problem;  
       $request->print("<b>Making Backup to $filebak</b><br />");  
     } else {  
       $request->print("<font color=\"red\" size=\"+1\"><b>Unable to make backup $filebak</b></font>");  
       $error=2;  
     }  
     my $fh=Apache::File->new(">$file");  
     if (defined($fh)) {  
       print $fh $$result;  
       $request->print("<b>Saving Modifications to $file</b><br />");  
     } else {      } else {
       $request->print("<font color=\"red\" size=\"+1\"><b>Unable to write to $file</b></font>");   my $fs=Apache::File->new(">$filebak");
       $error|=4;   if (defined($fs)) {
       print $fs $$problem;
       $request->print("<b>Making Backup to $filebak</b><br />");
    } else {
       $request->print("<font color=\"red\" size=\"+1\"><b>Unable to make backup $filebak</b></font>");
       $error=2;
    }
    my $fh=Apache::File->new(">$file");
    if (defined($fh)) {
       print $fh $$result;
       $request->print("<b>Saving Modifications to $file</b><br />");
    } else {
       $request->print("<font color=\"red\" size=\"+1\"><b>Unable to write to $file</b></font>");
       $error|=4;
    }
     }      }
   }      return $error;
   return $error;  
 }  }
   
 sub analyze_header {  sub analyze_header {
Line 364  sub analyze_header { Line 364  sub analyze_header {
             <head><title>Analyzing a problem</title></head>              <head><title>Analyzing a problem</title></head>
             <body bgcolor="#FFFFFF">              <body bgcolor="#FFFFFF">
             <form name="lonhomework" method="POST" action="'.              <form name="lonhomework" method="POST" action="'.
       $ENV{'request.uri'}.'">      $ENV{'request.uri'}.'">
             <input type="submit" name="problemmode" value="EditXML" />              <input type="submit" name="problemmode" value="EditXML" />
             <input type="submit" name="problemmode" value="Edit" />              <input type="submit" name="problemmode" value="Edit" />
             <hr />              <hr />
Line 452  sub analyze { Line 452  sub analyze {
 }  }
   
 sub editxmlmode {  sub editxmlmode {
   my ($request,$file) = @_;      my ($request,$file) = @_;
   my $result;      my $result;
   my $problem=&Apache::lonnet::getfile($file);      my $problem=&Apache::lonnet::getfile($file);
   if ($problem eq -1) {      if ($problem eq -1) {
     &Apache::lonxml::error("<b> Unable to find <i>$file</i></b>");   &Apache::lonxml::error("<b> Unable to find <i>$file</i></b>");
     $problem='';   $problem='';
   }      }
   if (defined($ENV{'form.editxmltext'}) || defined($ENV{'form.Undo'})) {      if (defined($ENV{'form.editxmltext'}) || defined($ENV{'form.Undo'})) {
     my $error=&handle_save_or_undo($request,\$problem,   my $error=&handle_save_or_undo($request,\$problem,
    \$ENV{'form.editxmltext'});         \$ENV{'form.editxmltext'});
     if (!$error) { $problem=&Apache::lonnet::getfile($file); }   if (!$error) { $problem=&Apache::lonnet::getfile($file); }
   }      }
   &Apache::lonhomework::showhashsubset(\%ENV,'^form');  
   if ( $ENV{'form.submit'} eq 'Submit Changes and View' ) {  
     &Apache::lonhomework::showhashsubset(\%ENV,'^form');      &Apache::lonhomework::showhashsubset(\%ENV,'^form');
     $ENV{'form.problemmode'}='View';      if ( $ENV{'form.submit'} eq 'Submit Changes and View' ) {
     &renderpage($request,$file);   &Apache::lonhomework::showhashsubset(\%ENV,'^form');
   } else {   $ENV{'form.problemmode'}='View';
     my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);   &renderpage($request,$file);
     my $xml_help = Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index",      } else {
   "Problem Editing Help");   my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem);
     if ($cols > 80) { $cols = 80; }   my $xml_help = Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index",
     if ($cols < 70) { $cols = 70; }        "Problem Editing Help");
     if ($rows < 20) { $rows = 20; }   if ($cols > 80) { $cols = 80; }
     $result.='<html><body bgcolor="#FFFFFF">   if ($cols < 70) { $cols = 70; }
    if ($rows < 20) { $rows = 20; }
    $result.='<html><body bgcolor="#FFFFFF">
             <form name="lonhomework" method="POST" action="'.              <form name="lonhomework" method="POST" action="'.
       $ENV{'request.uri'}.'">      $ENV{'request.uri'}.'">
             <input type="hidden" name="problemmode" value="EditXML" />              <input type="hidden" name="problemmode" value="EditXML" />
             <input type="submit" name="problemmode" value="Discard Edits and View" />              <input type="submit" name="problemmode" value="Discard Edits and View" />
             <input type="submit" name="problemmode" value="Edit" />              <input type="submit" name="problemmode" value="Edit" />
Line 489  sub editxmlmode { Line 489  sub editxmlmode {
             <hr />              <hr />
             ' . $xml_help . '              ' . $xml_help . '
             <textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.              <textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'.
       &HTML::Entities::encode($problem).'</textarea>      &HTML::Entities::encode($problem).'</textarea>
             </form></body></html>';              </form></body></html>';
     $request->print($result);   $request->print($result);
   }      }
   return '';      return '';
 }  }
   
 sub renderpage {  sub renderpage {
   my ($request,$file) = @_;      my ($request,$file) = @_;
   
   my (@targets) = &get_target();      my (@targets) = &get_target();
   &Apache::lonxml::debug("Running targets ".join(':',@targets));      &Apache::lonxml::debug("Running targets ".join(':',@targets));
   foreach my $target (@targets) {      foreach my $target (@targets) {
     #my $t0 = [&gettimeofday()];   #my $t0 = [&gettimeofday()];
     my $problem=&Apache::lonnet::getfile($file);   my $problem=&Apache::lonnet::getfile($file);
     if ($problem eq -1) {   if ($problem eq -1) {
       &Apache::lonxml::error("<b> Unable to find <i>$file</i></b>");      &Apache::lonxml::error("<b> Unable to find <i>$file</i></b>");
       $problem='';      $problem='';
     }   }
   
     my %mystyle;   my %mystyle;
     my $result = '';   my $result = '';
     if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }   if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); }
     if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }   if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); }
     if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%ENV,'^form');}   if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%ENV,'^form');}
   
     &Apache::lonxml::debug("Should be parsing now");   &Apache::lonxml::debug("Should be parsing now");
     $result = &Apache::lonxml::xmlparse($request, $target, $problem,   $result = &Apache::lonxml::xmlparse($request, $target, $problem,
  &setup_vars($target),%mystyle);      &setup_vars($target),%mystyle);
     undef($Apache::lonhomework::parsing_a_problem);   undef($Apache::lonhomework::parsing_a_problem);
     #$request->print("Result follows:");   #$request->print("Result follows:");
     if ($target eq 'modified') {   if ($target eq 'modified') {
       &handle_save_or_undo($request,\$problem,\$result);      &handle_save_or_undo($request,\$problem,\$result);
     } else {   } else {
       if ($target eq 'analyze') {      if ($target eq 'analyze') {
  $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);   $result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze);
  undef(%Apache::lonhomework::analyze);   undef(%Apache::lonhomework::analyze);
       }      }
       #my $td=&tv_interval($t0);      #my $td=&tv_interval($t0);
       #if ( $Apache::lonxml::debug) {      #if ( $Apache::lonxml::debug) {
  #$result =~ s:</body>::;      #$result =~ s:</body>::;
  #$result.="<br />Spent $td seconds processing target $target\n</body>";      #$result.="<br />Spent $td seconds processing target $target\n</body>";
       #}      #}
       $request->print($result);      $request->print($result);
       $request->rflush();      $request->rflush();
    }
    #$request->print(":Result ends");
    #my $td=&tv_interval($t0);
     }      }
     #$request->print(":Result ends");  
     #my $td=&tv_interval($t0);  
   }  
 }  }
   
 # with no arg it returns a HTML <option> list of the template titles  # with no arg it returns a HTML <option> list of the template titles
 # with one arg it returns the filename associated with the arg passed  # with one arg it returns the filename associated with the arg passed
 sub get_template_list {  sub get_template_list {
   my ($namewanted,$extension) = @_;      my ($namewanted,$extension) = @_;
   my $result;      my $result;
   my @allnames;      my @allnames;
   &Apache::lonxml::debug("Looking for :$extension:");      &Apache::lonxml::debug("Looking for :$extension:");
   foreach my $file (</home/httpd/html/res/adm/includes/templates/*.$extension>) {      foreach my $file (</home/httpd/html/res/adm/includes/templates/*.$extension>) {
     my $name=&Apache::lonnet::metadata($file,'title');   my $name=&Apache::lonnet::metadata($file,'title');
     if ($namewanted && ($name eq $namewanted)) {   if ($namewanted && ($name eq $namewanted)) {
       $result=$file;      $result=$file;
       last;      last;
     } else {   } else {
  if ($name) { push (@allnames, $name); }      if ($name) { push (@allnames, $name); }
    }
       }
       if (@allnames && !$result) {
    $result="<option>Select a $extension template</option>\n<option>".
       join('</option><option>',sort(@allnames)).'</option>';
     }      }
   }      return $result;
   if (@allnames && !$result) {  
     $result="<option>Select a $extension template</option>\n<option>".  
  join('</option><option>',sort(@allnames)).'</option>';  
   }  
   return $result;  
 }  }
   
 sub newproblem {  sub newproblem {
Line 614  ENDNEWPROBLEM Line 614  ENDNEWPROBLEM
 }  }
   
 sub view_or_edit_menu {  sub view_or_edit_menu {
   my ($request) = @_;      my ($request) = @_;
   my $url=$request->uri;      my $url=$request->uri;
   $request->print(<<EDITMENU);      $request->print(<<EDITMENU);
 <body bgcolor="#FFFFFF">  <body bgcolor="#FFFFFF">
 <form action="$url" method="POST">  <form action="$url" method="POST">
 Would you like to <input type="submit" name="problemmode" value="View"> or  Would you like to <input type="submit" name="problemmode" value="View"> or
Line 627  EDITMENU Line 627  EDITMENU
 }  }
   
 sub handler {  sub handler {
   #my $t0 = [&gettimeofday()];      #my $t0 = [&gettimeofday()];
   my $request=$_[0];      my $request=$_[0];
       
       $Apache::lonxml::debug=$ENV{'user.debug'};
   
   $Apache::lonxml::debug=$ENV{'user.debug'};      if (&setupheader($request)) { return OK; }
       $ENV{'request.uri'}=$request->uri;
   
   if (&setupheader($request)) { return OK; }      #setup permissions
   $ENV{'request.uri'}=$request->uri;      $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'});
       $Apache::lonhomework::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});
       &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:");
       # some times multiple problemmodes are submitted, need to select
       # the last one
       &Apache::lonxml::debug("Problem Mode ".$ENV{'form.problemmode'});
       if ( defined($ENV{'form.problemmode'}) &&
    ref($ENV{'form.problemmode'}) ) {
    &Apache::lonxml::debug("Problem Mode ".join(",",@$ENV{'form.problemmode'}));
    my $mode=$ENV{'form.problemmode'}->[-1];
    undef $ENV{'form.problemmode'};
    $ENV{'form.problemmode'}=$mode;
       }
       &Apache::lonxml::debug("Problem Mode ".$ENV{'form.problemmode'});
       my $file=&Apache::lonnet::filelocation("",$request->uri);
   
       #check if we know where we are
       if ($ENV{'request.course.fn'} && !&Apache::lonnet::symbread()) { 
    # if we are browsing we might not be able to know where we are
    if ($Apache::lonhomework::browse ne 'F') {
       #should know where we are, so ask
       if ( &Apache::lonnet::mod_perl_version() == 2 ) {
    &Apache::lonnet::cleanenv();
       }
       $request->internal_redirect('/adm/ambiguous'); return;
    }
       }
   
   #setup permissions      my ($symb) = &Apache::lonxml::whichuser();
   $Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'});      &Apache::lonxml::debug('symb is '.$symb);
   $Apache::lonhomework::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'});      if ($ENV{'request.state'} eq "construct" || $symb eq '') {
   &Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:");   if ($ENV{'form.resetdata'} eq 'Reset Submissions' ||
   # some times multiple problemmodes are submitted, need to select      $ENV{'form.resetdata'} eq 'New Problem Variation' ||
   # the last one      $ENV{'form.newrandomization'} eq 'New Randomization') {
   &Apache::lonxml::debug("Problem Mode ".$ENV{'form.problemmode'});      my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();
   if ( defined($ENV{'form.problemmode'}) &&      &Apache::lonnet::tmpreset($symb,'',$domain,$name);
        ref($ENV{'form.problemmode'}) ) {      &Apache::lonxml::debug("Attempt reset");
     &Apache::lonxml::debug("Problem Mode ".join(",",@$ENV{'form.problemmode'}));   }
     my $mode=$ENV{'form.problemmode'}->[-1];      }
     undef $ENV{'form.problemmode'};      if ($ENV{'request.state'} eq "construct") {
     $ENV{'form.problemmode'}=$mode;   if ( -e $file ) {
   }      &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
   &Apache::lonxml::debug("Problem Mode ".$ENV{'form.problemmode'});      ['problemmode']);
   my $file=&Apache::lonnet::filelocation("",$request->uri);      if (!(defined $ENV{'form.problemmode'})) {
    #first visit to problem in construction space
   #check if we know where we are   #&view_or_edit_menu($request);
   if ($ENV{'request.course.fn'} && !&Apache::lonnet::symbread()) {    $ENV{'form.problemmode'}='View';
     # if we are browsing we might not be able to know where we are   &renderpage($request,$file);
     if ($Apache::lonhomework::browse ne 'F') {      } elsif ($ENV{'form.problemmode'} eq 'EditXML') {
       #should know where we are, so ask   &editxmlmode($request,$file);
  if ( &Apache::lonnet::mod_perl_version() == 2 ) {      } elsif ($ENV{'form.problemmode'} eq 'Calculate answers') {
     &Apache::lonnet::cleanenv();   &analyze($request,$file);
  }      } else {
  $request->internal_redirect('/adm/ambiguous'); return;   &renderpage($request,$file);
     }      }
   }   } else {
       # requested file doesn't exist in contruction space
   my ($symb) = &Apache::lonxml::whichuser();      &newproblem($request);
   &Apache::lonxml::debug('symb is '.$symb);   }
   if ($ENV{'request.state'} eq "construct" || $symb eq '') {  
       if ($ENV{'form.resetdata'} eq 'Reset Submissions' ||  
   $ENV{'form.resetdata'} eq 'New Problem Variation' ||  
           $ENV{'form.newrandomization'} eq 'New Randomization') {  
   my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser();  
   &Apache::lonnet::tmpreset($symb,'',$domain,$name);  
 &Apache::lonxml::debug("Attempt reset");  
       }  
   }  
   if ($ENV{'request.state'} eq "construct") {  
     if ( -e $file ) {  
       &Apache::loncommon::get_unprocessed_cgi  
                           ($ENV{'QUERY_STRING'},['problemmode']);  
       if (!(defined $ENV{'form.problemmode'})) {  
  #first visit to problem in construction space  
  #&view_or_edit_menu($request);  
  $ENV{'form.problemmode'}='View';  
  &renderpage($request,$file);  
       } elsif ($ENV{'form.problemmode'} eq 'EditXML') {  
  &editxmlmode($request,$file);  
       } elsif ($ENV{'form.problemmode'} eq 'Calculate answers') {  
  &analyze($request,$file);  
       } else {  
  &renderpage($request,$file);  
       }  
     } else {      } else {
       # requested file doesn't exist in contruction space   # just render the page normally outside of construction space
       &newproblem($request);   &Apache::lonxml::debug("not construct");
    &renderpage($request,$file);
     }      }
   } else {      #my $td=&tv_interval($t0);
     # just render the page normally outside of construction space      #&Apache::lonxml::debug("Spent $td seconds processing");
     &Apache::lonxml::debug("not construct");      # &Apache::lonhomework::send_footer($request);
     &renderpage($request,$file);      # always turn off debug messages
   }      $Apache::lonxml::debug=0;
   #my $td=&tv_interval($t0);      return OK;
   #&Apache::lonxml::debug("Spent $td seconds processing");  
   # &Apache::lonhomework::send_footer($request);  
   # always turn off debug messages  
   $Apache::lonxml::debug=0;  
   return OK;  
   
 }  }
   
Removed from v.1.144  
changed lines
  Added in v.1.145

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